Mechanism to speed-up multithreaded execution by register file write port reallocation

US9207995B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Maarten J. Boersma · Holzgerlingen, DE
• Markus Kaltenbach · Holzgerlingen, DE
• Jens Leenstra · Nagold, DE
• Tim Niggemeier · Laatzen, DE
• Philipp Oehler · Schrobenhausen, DE
• Philipp Panitz · Eppelheim, DE

Key dates

• Filing date: Jun 27, 2011
• Grant date: Dec 8, 2015
• Expiry date: Sep 14, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/3891
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Various systems and processes may be used to speed up multi-threaded execution. In certain implementations, a system and process may include the ability to write results of a first group of execution units associated with a first register file into the first register file using a first write port of the first register file and write results of a second group of execution units associated with a second register file into the second register file using a first write port of the second register file. The system, apparatus, and process may also include the ability to connect, in a shared register file mode, results of the second group of execution units to a second write port of the first register file and connect, in a split register file mode, results of a part of the first group of execution units to the second write port of the first register file.